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Grower's Choice X TSL Horti Tech ROI-E420 LED Grow Light

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Additional Information

Light Source   LED
 Spectrum  GC-3K Full Phase
 PPF 1090 μmol/s
 Input Power  420Watts
 Efficacy  2.6 μmol/s
 Fixture & Dimensions 35.3” L x 34.6” W x 3.2” H | 25lbs
 Mounting height 6"-24" depending on application
 Thermal Management  Passive
 Dimming  0-10V
 Light Distribution  120°
 Life Time  L90: >54,000 hrs
 Power Factory  >90%
 Certification IP65, CE, UL8800,UL1598, DLC
 Warranty  3 Years Standard Warranty


With a balanced spectrum to obtain the ultimate growing power, the ROI-E420 LED Grow Light is the right indoor growth system option. You get a full spectrum covering a more comprehensive range of wavelength to protect more than 660nm.

With better radiant energy, the 660 nm range operates between 3000 to 3300K. It gives a more realistic color promoting the natural growth of plants.

With the ROI-E420, you have full control over the intensity. So, you can set just the right conditions for photosynthesis. Moreover, a more comprehensive compatibility range means that you can use most LED controllers with it.

In addition to improved production, you can save up to 40% on energy and HVAC requirements. It takes 420-Watt input, with passive thermal management and 120-degrees light distribution. You can mount the light anywhere between 6 to 24 inches, so it's equally useful for large and small indoor systems.

The fixture spans about 35.3” x 34.6”, so it’s an ideal option for 4’ x 4’ or 5’ x 5’ grow tents. Moreover, its foldable design makes storage more convenient. Even for its size, it’s a powerful enough light for any commercial application.



Balanced spectrum, Incorporating Grower’s Choice famous 3K CMH Full Phase Spectrum for superior growing power with best possible LED diodes available.

High Performance:

  • 1090 μmol/s Total Output
  • 2.6 μmol/J System Efficacy

Energy Saving and Easy HVAC:

  • Up to 40% energy saving
  • 40% less HVAC requirement

Full Spectrum

The specially deployed full spectrum fills the negligence of the main photoreceptors and pigments outside the 660nm and 450nm range, and it is suitable for reproduction to aging in indoor environments. The overall color temperature of FSM's full spectrum is controlled at 3000-3300K, which increases the radiant energy of red light at 660nm wavelength in white light. It provides a beautiful working environment and a more realistic color reproduction degree at a CRI level of 85.

Total Control

With onboard dimming function, growers can set the ideal intensity at any stage of plant growth for optimal photosynthesis activation. Also, it is compatible with most lighting controllers including Grower’s Choice Master Lighting controller.

Even Light Distribution

Precisely designed to deliver uniform levels of photosynthetic photon flux density (PPFD)

Quality Components

Industrial grade manufactured with Osram Top Bin Diodes and ultra-efficient driver


    • ROI-E420 LED System
    • 9’ Connecting Cable
    • Information Page
    • User Manual

    Customer Reviews

    Based on 1 review
    Small Sample Size

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